From: pcdhobbs@gmail.com   
      
   Merry Christmas, all (there are 10 days left) ;)   
      
   These days the catalogue houses sell a lot of so-called nonpolarizing beam   
   splitters.  Since the Fresnel formulae are strongly polarization dependent,   
   making a broadband beamsplitter with only weak polarization dependence is a   
   bit of a parlour trick.   
      
   Anybody know how they do that?   
      
   Cheers   
      
   Phil Hobbs   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)